植被结构变化对植被二次继承期间碳捕集能力的影响,在中国中部的亚热带常青叶宽叶混合森林中
Wu Juyang1, Xiang Qin2, Xia Yongzhi3
1Faculty of Resources and Environmental Science, Hubei University, Wuhan, 430062, China; Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China.
Journal of environmental management
|November 26, 2025
概括
森林层结构显著影响碳捕获. 针对结构多样性和竞争的管理策略可以增强森林碳汇,帮助实现全球气候目标.
科学领域:
- 森林生态 森林生态
- 气候变化科学 气候变化科学
- 生态系统管理 生态系统管理
背景情况:
- 全球气候变化需要提高森林的碳吸收能力.
- 森林群结构是碳捕获的一个关键,可管理的因素.
- 了解结构功能关系对于可持续森林管理至关重要.
研究的目的:
- 量化植被碳密度和混合森林的封存率,跨越连续阶段.
- 调查站立空间和非空间结构对碳汇容量的影响.
- 为森林中以结构为导向的碳增强提供经验指导.
主要方法:
- 利用来自常青叶落叶大叶混合森林中的永久地块的库存数据.
- 综合物种特定的全度方程与现场测量.
- 分析了图片级数据和树坐标,以评估空间和非空间结构.
主要成果:
- 二次继承增加了结构复杂性和稳定性,在继承阶段中期的峰值封存.
- 结构多样性和竞争强度是碳汇功能的主要驱动因素.
- 空间结构影响了树冠封存 (早期继承),而非空间结构影响了底层森林和成熟森林的碳动态.
结论:
- 空间和非空间结构的协同效应为碳增强提供了双重机制.
- 针对年轻种群的有针对性的管理可以促进短期封存;在成熟种群中保持异质性可以提高长期储存和稳定性.
- 该研究为基于结构的森林碳增强和碳中和的可持续管理提供了一个框架.
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